Issue 6
The V-9927A was designed with ease of installation and flexibility in mind. Connections are by screw terminals located on the edge of the PCB. The various options and tones are set using option blocks located inside the enclosure on the PC Board.
The V-9927A is a microprocessor controlled multi-tone generator capable of producing a variety of tone signals for various applications. It is functional and backward compatible with the previous V-9927.
Note: Double check all wiring as connections to the unit are different.
This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference when this equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his/her own expense.
Power Requirements
24VDC “B” Battery at 100mA
Nominal Input/Output Specifications :
Input Impedance: 600 Ohms
Output Impedance: Less than 4 Ohms
Min. Output Load Impedance: 20 Ohms
Audio Input: 0dBm nominal
Maximum Tone Output: >0dBm single tone
Operating Environment:
Temperature: 0 to +50° C
Humidity: 0 to 85% (non-condensing)

8.20 "H x 4.55 "W x 2.30 "D
(20.83cm H x 11.56cm W x 5.84cm D)

Weight: 1.5 lbs (0.68 kg)
Product is intended for wall mounting only.
When mounting, open enclosure and remove circuit board. Screw back of enclosure to backboard near the telephone system common equipment. Snap circuit board back in place.
Both mounting holes must be utilized to insure secure mounting of the unit.
Make connections and set tones, using option blocks, as required for the specific application
Refer to Tone Table on page 2 for tone descriptions.
Replace cover and plug in power supply.
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Operation of the V-9927A is accomplished by applying a connection between the COM
(Common) terminal on the terminal block and the desired tone # (1-8).
The Tone selected by terminal number 1 has priority over others. If multiple tone inputs are being used, it is possible to sequence tones by closing the appropriate contacts in the desired sequence. However, Tone number 1 will always be placed first on the list when it has been activated.
If multiple tones are selected at the same time, the LOWEST tone number will have priority. If the lowest contact is open, then the next lowest tone number will be activated.
When a Tone is activated the INPUT source will be faded out in 0.75 seconds if P5 is out or will be faded out in 0.25 seconds if P5 is IN.
The V-9927A has a buffer for 32 tones. If more than 32 tones are entered within a short period, the V-9927A will drop the last tone entered
When the V-9927A is connected to the V-9923A code call unit, the V-9927A will respond to the contact closure inputs and issue single chimes in response (See Figure 2).
At the beginning of a Code Call sequence, the
INPUT source will be faded down about 6dB. It will remain at this level until the CODE CALL sequence has completed (including the inter digit time). At that time, the INPUT source will be faded back up to normal level.
When using the CODE CALL option with other tone options, the CODE CALL may be interrupted to place other tones in the sequence
(including Tone #1 with higher priority).
However, the CODE CALL may be out of sequence for the period that this occurs.
Figure 2 illustrates several of the ways the
V-9927A can be used with other Valcom equipment.
CONNECTION
ON
JP1
COM - TONE 1
COM - TONE 2
COM - TONE 3
COM - TONE 4
COM - TONE 5
COM - TONE 6
COM - TONE 7
COM - TONE 8
COM - TONE 1
COM - TONE 2
COM - TONE 3
COM - TONE 4
COM - TONE 5
COM - TONE 6
COM - TONE 7
COM - TONE 8
OPTION
BLOCK
P3
IN
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
NOTE: * denotes V-9927 compatible tones
DESCRIPTION
* WHOOP, 698 Hz, 3.9 sec (approx.)/cycle 2 cycle min.
* DUAL CHIME, 880 Hz/698 Hz
* BURST, 880 Hz, 1/2 sec on, 2 min.
* STEADY, 880 Hz, 3 sec. min.
TeleBell 986/784 Hz, 11/sec, 10 minimum
Chimes, 986, 784, 659, 523 Hz order
Chimes, 880, 698, 587, 494 Hz order
CODE CALL CHIME, 784 Hz (V-9923A standard)
SIREN, 659 Hz, center 1 cycle approx. 0.3 Hz
WHOOP (yelp) 659 Hz, 2.5 Hz, 4 min.
WARBLE, 494/986 Hz, 6 Hz rate
STEADY 698 Hz, 1 sec. minimum
BURST (pulse), 494 Hz, 4.5 Hz rate
Chimes 659/784 Hz
Chimes 986/784 Hz
CODE CALL CHIME, 784 Hz (V-9923A Standard)
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Option Blocks (Jumpers shown in factory default setting))
P6 P5
OUT
IN
UNMUTE
P4 P1
BURST
MUTE CONT P2 P3
OUT
IN
TONE BANK
SELECT
T1
Compatibility with the V-9927
Set P3 to "IN" position
Set P1 for BURST or CONT as required
Set P4 to UNMUTE
Set P5 to "IN"
TONE inputs 1-4 correspond to WHOOP,
CHIME, BURST, and STEADY.
CODE CALL is available on TONE input 8.
Adjust for
Desired
Output Level
Green LED on when power is present
TONE
LVL
POWER
ON
T2
JP1
1 2 3 4 5 6 7 8 COM SIGNAL COM SIGNAL GND -24V
TONES IN OUT
Power Supply
-24VDC
(-)
(+)
Connect COM to
Desired Tone
Relay
Contact
Signal In
(Optional)
Signal
Out
Description of Jumpers
P1 (BURST/CONT) - Sets the mode of the V-9927A. The BURST function allows one (1) tone (or sequence) for each closure of the TONES input. The CONT function is continuous; the tone (or sequence) will repeat while the closure on the TONES input (1-8) remains activated.
P3 (TONE BANK Select; OUT/IN) - Activates tones. Refer to the Tone Table (page 2) to determine jumper placement for the desired tones.
P4 (UNMUTE/MUTE) - Determines if SIGNAL IN is muted or unmuted. With UNMUTE selected, the signal returns after completion of a designated tone (or sequence) even if the relay on the TONES input (1-8) remains connected. With MUTE selected, the signal remains off after completion of tones even if the relay on the TONES input (1-8) is connected.
P5 (OUT/IN) - Determines the fadeout duration of the Input Source. The INPUT source will be faded out in 0.75
seconds if P5 is OUT or will be faded out in 0.25 seconds if P5 is IN.
P2 & P6 - Not used on this version.
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When trouble is reported, verify the unit in question is turned on (the green ON LED should be observed) and all connections are secure.
Assistance in trouble shooting is available from the factory. When calling, you should have a VOM available and be calling from the job site. Call (540) 563-2000 and press 1 for Technical Support, or visit our website at http://www.valcom.com
Valcom equipment is not field repairable.
Valcom maintains service facilities in Roanoke,
VA. Should repairs be necessary, attach a tag to the unit clearly stating company name, address, phone number, contact person, and the nature of the problem. Send the unit to:
Valcom, Inc.
Repair & Return Dept.
5614 Hollins Road
Roanoke, VA 24019-5056
VALCOM LIMITED WARRANTY
Valcom, Inc. warrants its products only to the original purchaser, for its own use, to be free from defects in materials and workmanship under conditions of normal use and service for a period of one year from the date of shipment. This Limited Warranty obligation shall be limited to the replacement, repair or refund of any such defective device within the warranty period, provided that:
1. inspection by Valcom, Inc. indicates the validity of the claim;
2. the defect is not the result of damage, misuse or negligence after the original shipment;
3. the product has not been altered in any way or repaired by others and that factory sealed units are unopened (a service charge plus parts
and labor will be applied to units defaced or physically damaged);
4. freight charges for the return of products to Valcom are prepaid;
5. all units 'out of warranty' are subject to a service charge. The service charge will cover minor repairs (major repairs will be subject to
additional charges for parts and labor).
This Limited Warranty is in lieu of and excludes all other warranties, expressed or implied and in no event shall Valcom, Inc. be liable for any anticipated profits, consequential damages, loss of time or other losses incurred by the buyer in connection with the purchase, operation, maintenance, installation, removal or use of the product. The maximum liability of Valcom under this warranty is limited to the purchase price of the specific Product covered by the warranty.
Disclaimer. Except for the Limited Warranty provided herein, the product is provided “as-is” without any warranty of any kind whatsoever including, without limitation, any WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.
This warranty specifically excludes damage incurred in shipment. In the event a product is received in damaged condition, the carrier should be notified immediately. Claims for such damage should be filed with the carrier involved in accordance with the F.O.B. point.
Headquarters:
Valcom, Inc.
5614 Hollins Road Roanoke, VA 24019-5056
Phone: (540) 563-2000 FAX: (540) 362-9800
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